Merge pull request #20247 from A4-Tacks/gen-mut-impl-mut

Add tailexpr & -> &mut for generate_mut_trait_impl

Merge pull request #20236 from gvozdvmozgu/patch-1

remove now useless `#[allow(unused_lifetimes)]`

Merge pull request #20200 from rust-lang/revert-20157-push-nxrvpywtvoys

Revert "Re-enable fixpoint iteration for variance computation"

Merge pull request #20184 from Veykril/push-ywpynxnltpok

chore: Remove dead field from `InferenceContext`

Merge pull request #20122 from chenyukang/yukang-fix-remove-parens

Remove unnecessary parens in closure

Merge pull request #20056 from ShoyuVanilla/fmt-args-new

Minic rustc's new `format_args!` expansion

Merge pull request #20000 from tadeokondrak/lifetime-repeat-macro

Allow lifetime repeats in macros: $($x)'a*

Merge pull request #19949 from ChayimFriedman2/stabilize-json

fix: Stabilize the "JSON is not Rust" diagnostic

Merge pull request #19900 from Veykril/push-zurosouxqxzz

fix: Fix manual not containing diagnostics documentation

Merge pull request #19853 from Veykril/push-ovpvzkxmpsuk

Bump salsa